Transportation – Perambulator – invalid chair – or stretcher – Wheelchair
Patent
1991-11-04
1993-07-13
Chin, Kay H.
Transportation
Perambulator, invalid chair, or stretcher
Wheelchair
Patent
active
D03372898
REFERENCES:
patent: D278217 (1985-04-01), Nasstrt
patent: D294475 (1988-03-01), Chen
patent: 4721321 (1988-01-01), Haury et al.
patent: 5152543 (1992-10-01), Sims et al.
Constantine David P.
Frost Richard J.
Garvey Nigel
Gue Simon T.
Willems Pierre
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